/* banner */
#banner-box{
    margin-top:60px;
    margin-bottom:60px;
}
.banner-box{
    width:1200px;
    margin-left:auto;
    margin-right:auto;
    height:360px;
    box-shadow: 0 12px 24px 0 rgba(7,17,27,.2);
    position: relative;
    border-radius: 10px;
    overflow: hidden;
}
.menu-wrap{
    float:left;
    width:320px;
    height:100%;
    background:rgb(72, 72, 72);
    color:#fff;
    box-sizing: border-box;
}
.course-wrap{
    position:absolute;
    width:880px;
    height:360px;
    background:#fff !important;
    left:320px;
    top:0;
    display: none;
}
.menu-item{
    width: 100%;
    height: 60px;
    line-height: 60px;
    font-size: 18px;
    position: relative;
    padding-left: 30px;
    box-sizing: border-box;
    padding-right: 30px;
}
.menu-item:hover{
    background:#fff;
}
.menu-item:hover a,
.menu-item:hover i{
    color:rgb(72, 72, 72);
}
.menu-item i{
    display: block;
    position: absolute;
    color: rgba(255, 255, 255, 0.58);
    right: 30px;
    top: 0;
    bottom: 0;
    font-size: 18px;
    margin: auto;
    height: 18px;
}
.menu-item a{
    color:#fff;
    text-decoration: none;
    float:left;
    display:block;
}
.menu-item a:hover{
    text-decoration: underline
}
.menu-item a.menu-nav-first{
    font-size:18px;
    font-weight: bold;
}
.menu-item a.menu-nav-hot{
    font-size:16px;
    margin-left: 20px;
}

.banner-wrap{
    float:left;
    width:880px;
    height:360px;
    background:rgb(166, 166, 235);
}

/* 精品视频推荐 */
.videos{
    padding-top:30px;
    padding-bottom:60px;
    box-shadow: 0 2px 4px 0 rgba(7,17,27,.06);
}
.videos.bgfff{
    box-shadow: 0 2px 8px 0 rgba(7,17,27,.06);
}
.videos-wrap{

}
.videos-wrap h2{
    text-align: center;
    font-size: 28px;
    /* border-bottom: 2px dotted #b3b3b3; */
    position: relative;
    line-height: 70px;
    color:#5a5a5a;
}
.videos-wrap h2 a{
    position:absolute;
    font-size:16px;
    color:#5a5a5a;
    text-decoration: none;
    right: 0;
    bottom: 0;
    transition: all .5s;
}
.videos-wrap h2 a:hover{
    color:#e22027;
}
